Erik Stecker « Daily Bulletin

teslong borescope digital camera barrel monitor

As an Amazon Associate, this site earns a commission from Amazon sales.

March 24th, 2016

Applied Ballistics Will Offer Three More 2016 Seminars

Applied Ballistics Seminars

After the success of its recent winter Ballistics seminar in Michigan, Applied Ballistics has decided to take its show on the road, offering additional Ballistics seminars in three different states (Texas, Michigan, and North Carolina). These three seminars will cover a wide range of topics, with the primary focus on basic to advanced ballistics principles as applied to long-range shooting. Registration is now open for the three (3) upcoming Ballistics Seminars:

1) Addison/Dallas, Texas, May 23-24, 2016 | INFO and Registration
2) Tustin, Michigan, July 18-19, 2016 | INFO and Registration
3) Sophia, NC, November 3-4, 2016 | INFO and Registration

This video explains the subjects covered by Applied Ballistics Seminars:

Ballistician (and current F-TR National Mid-Range and Long-Range Champion) Bryan Litz will be the primary speaker at the spring, summer, and fall seminars. He will present material from his books and the Applied Ballistics Lab, and he will discuss his experience shooting in various disciplines. The seminar will feature structured presentations by Bryan and other noted speakers, but a great deal of time will be alloted for questions and discussion. By the end of the seminar, participants should have a much better understanding of how to apply ballistics in the real world to hit long-range targets. Along with Bryan, other respected experts will include:

Emil Praslick III – Head coach of the U.S. Palma team and retired head coach of the U.S. Army Marksmanship Unit. Emil will discuss tactics, strategy, and mindset for successful wind-reading.

Eric Stecker – Master Bulletsmith and President of Berger Bullets. Eric will be presenting on precision bullet making technology.

Nick Vitalbo – Owner of nVisti Tactical Innovations and chief engineer for Applied Ballistics. Nick will discuss the state of the art in laser rangefinders and wind reading devices.

Mitch Fitzpatrick – Applied Ballistics intern and owner of Lethal Precision Arms. Mitch specializes in Extended Long Range (ELR) cartridge selection and rifle design.

Ballistics Seminar Topics

Trajectory Basics – zeroing, point blank range, danger space, incline shooting.
Wind – Mechanism of wind deflection, reading the wind, wind strategies, wind sensing gear.
Secondary Effects – Spin drift, Coriolis, aerodynamic jump.
Bullet Drag Modeling/Ballistic Coefficient – Definitions, testing, use.
Bullet Stability – Basic gyroscopic stability, transonic stability, limit cycle yaw.
Ballistic Solvers – How they work, best practices, demos.
Weapon Employment Zone (WEZ) Analysis – How to determine and improve hit percentage.
Optics and Laser Technology – State of the Art.

The seminars costs $500.00. But consider this — each seminar participant will receive the entire library of Applied Ballistics books and DVDs, valued at $234.75, PLUS a free copy of Applied Ballistics Analytics software, valued at $200.00. So you will be getting nearly $435.00 worth of books, DVDs, and software. In addition, a DVD of the seminar will be mailed to each attendee after the seminar concludes.

Applied Ballistics Seminars

(more…)

Permalink News, Shooting Skills No Comments »

October 22nd, 2015

Berger Updates Bullet BC Data and Recommended Twist Rates

Berger has released two important informational updates for its line-up of bullets. First, the Ballistics Coefficients (BCs) have been updated for the vast majority of bullets Berger sells. In addition, G7 model BCs are being provided for most of the bullets. You will want to use the updated BC data, which is based on actual testing of recent production lots of bullets.

Second, Berger is now providing a dual twist-rate recommendation for most bullets. Berger is now lists a “minimum” barrel twist rate as well as an “optimal” twist rate. To get maximum long-range performance from your bullets, use a barrel with the “optimal” rate of twist.

CLICK HERE for the latest Berger Quick Reference Sheets with updated BCs and new Optimal Twist Rates. Eric Stecker, Berger President says: “We have tested every lot of bullets‬ produced in the last several years to bring you these updated numbers for all of our bullets.”

Ballistic Coeffificent (BC) Updates with G7 Data
Berger notes: “We have updated all of our Ballistic Coefficients to be even more accurate.
Prior to 2008, all of Berger Bullets’ BCs were calculated using a computer prediction. Early in 2009, we began measuring BCs with live-fire testing. As a result, Berger’s BCs were updated and G7 BCs were also made available. This represented a dramatic improvement in the accuracy of performance data at that time. Since 2009, the BCs assessed for Berger Bullets have not been updated. As part of our ongoing effort to provide shooters with the best information possible, Berger has been testing every lot of bullets produced for the last several years. The result is updated and highly accurate running averages of BCs for recent production lots.

Here are some of the Updated BC Values for popular Berger Target (Match) Bullets:

Description	New G1 BC	New G7 BC	% Change

22 Cal 80gr VLD Target	0.455	0.233	+2%
22 Cal 90gr VLD Target	0.534	0.274	-3%
6mm 95gr VLD Target	0.467	0.240	-3%
6mm 105gr VLD Target	0.517	0.265	+5%
6mm 105gr Hybrid Target	0.536	0.275	-1%
6mm 115gr VLD Target	0.563	0.289	+3%
6.5mm 130gr VLD Target	0.562	0.288	+2%
6.5mm 140gr Hybrid Target	0.607	0.311	-2%
7mm 180gr VLD Target	0.683	0.350	+4%
7mm 180gr Hybrid Target	0.680	0.349	+1%
30 Cal 155gr Hybrid Target	0.478	0.245	-1%
30 Cal 185gr Hybrid Target	0.576	0.295	+1%
30 Cal 215gr Hybrid Target	0.691	0.354	-1%

CLICK HERE for Complete Table with all bullets on Berger Website

G7 Form Factor Addition
Berger also added the G7 form factor to the Ballistics Quick Reference Sheet. The analysis of form factors can be very useful when considering a bullet’s long range performance potential. Going by BC alone can be deceptive since BC includes the weight and caliber of the bullet. Form factor indicates how much drag the bullet has, which is a very important consideration for all bullets of all calibers.

NEW Dual Twist-Rate Recommendations
Recommended twist rates for bullets are commonly listed as a single value, such as 1:12” (one rotation in 12″ of barrel travel). This may be overly simplistic. There is a big gray area of marginal stability in which bullets can fly with good accuracy, but with a reduced (i.e. sub-optimal) Ballistic Coefficient. Recognizing this reality, Berger is now listing two twist rates for each bullet it makes. The first is the minimum twist needed for good accuracy, which Berger has always recommended. The second is the new optimal twist rate, which is the twist that will stabilize the bullet to a level which achieves its full performance (BC) potential. CLICK HERE For more information.

Berger BC Ballistics Coefficient Barrel Twist Rate Updates

January 13th, 2013

Video Interview with Walt Berger and Eric Stecker

Berger Bullets box Sinclair Int’l has released a 7-part series of video interviews with Walt Berger (founder of Berger Bullets) and Eric Stecker (Berger’s Exec. VP and Master Bulletsmith). The series is hosted by Sinclair’s President, Bill Gravatt. You can watch Parts 1 and 2 of the interview here, and we’ve provided links to the remaining Parts 3 through 7. All seven interview segments offer interesting material. Part 6 mentions up and coming stuff like the reloading manual. Part 7, over 13 minutes long, contains interesting discussions of bullet testing and the hunting performance of Berger VLDs. NOTE: You can view this entire video series (and many other videos) on Sinclair’s YouTube Channel Page.